Batu Tara activity

http://www.volcanodiscovery.com/videos/batu-tara/july2015/eruptions.html

Early on 3 July 2015, a rare and spectacular pyroclastic flow occurred at Batu Tara volcano that traveled approx. 150 m over the sea. It was caused by the collapse of the eruption column and accumulated loose material on the crater rim, following a strong, mass-rich explosion from the volcano.